CVE-2021-45471
In MediaWiki through 1.37, blocked IP addresses are allowed to edit EntitySchema items.
Date published : 2021-12-23
https://gerrit.wikimedia.org/r/q/Iac86cf63bd014ef99e83dccfce9b8942e15d2bf9
https://gerrit.wikimedia.org/r/q/Id9af124427bcd1e85301d2140a38bf47bbc5622c